<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>clear与margin重叠</title>
</head>

<body>
1.
<div style="background-color: #f5f5f5;">
    <img src="http://img.mukewang.com/53d60af3000171a002560191.jpg" style="float:left;">
	<div style="clear:both; margin-bottom:50px;">clear:both;</div>
</div>
<div style="margin-top: 50px;">本文字离图片的距离是？</div>
<br><br><br><br>2.
<div style="background-color: #f5f5f5; overflow: hidden;">
	<img src="http://img.mukewang.com/53d60af3000171a002560191.jpg" style="float:left; margin-bottom: 50px;">
</div>
<div style="margin-top: 50px;">本文字离图片的距离是？</div>
</body>
</html>